252664 has 8 divisors (see below), whose sum is σ = 473760. Its totient is φ = 126328.

The previous prime is 252641. The next prime is 252667. The reversal of 252664 is 466252.

252664 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15784 + ... + 15799.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2²⁵²⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

252664 is a deficient number, since it is larger than the sum of its proper divisors (221096).

252664 is a wasteful number, since it uses less digits than its factorization.

252664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31589 (or 31585 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 252664 is about 502.6569406663. The cubic root of 252664 is about 63.2190243427.

The spelling of 252664 in words is "two hundred fifty-two thousand, six hundred sixty-four".